Series and Parallel Wiring

The following image is a great example of series and parallel wiring.

Series Wiring:
Series wiring is when the voltage of a solar array is increased by wiring the positive of one solar module to the negative of another solar module. This is similar to installing batteries in a flashlight. As you slide the batteries into the flashlight tube the voltage increases.

Parallel Wiring:
Parallel wiring increases the current (amps) output of a solar array while keeping the voltage the same. Parallel wiring is when the positives of multiple modules are connected together and all the negatives for the same modules are connected together.

Series Parallel Combination:
Here is an example of what is found in most large solar systems, a series and parallel wiring combination.

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